Critical severity · published Mar 20, 2026
CVE-2026-22900
A use of hard-coded credentials vulnerability has been reported to affect QuNetSwitch
9.8
CVSS
0.3%
EPSS
No
On KEV
Description
A use of hard-coded credentials vulnerability has been reported to affect QuNetSwitch. The remote attackers can then exploit the vulnerability to gain unauthorized access.
We have already fixed the vulnerability in the following version:
QuNetSwitch 2.0.5.0906 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QU
QuNetSwitch · QNAP Systems Inc.
2.0.x before 2.0.5.0906 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22900
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22900
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-26-11
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